<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>表格标签</title>
</head>
<body>
<table width="400px" border="1px" align="center" cellspacing="0">
    <tr>
        <th>姓名</th>
        <th>性别</th>
        <th>年龄</th>
    </tr>
    <tr align="center">
        <th>小明</th>
        <th>男</th>
        <th>25</th>
    </tr>
    <tr align="center">
        <th>小红</th>
        <th>女</th>
        <th>22</th>
    </tr>
</table>

</body>
</html>